Fast to set up
Add your first URL and alert channel in minutes.
24/7 website monitoring
Get alerts when
your site goes down.
Stop discovering outages from angry customers. Add your first URL in minutes and get instant alerts when your site goes down.
Start For Free To Monitor Your Website Now
Public beta: monitor up to 5 URLs for free.
24/7 uptime monitoring for your websites, APIs and SSL. Get alerts by email, SMS or webhook.
Benefits
Simple Setup
Add your first check in under a minute, no code needed.
Real-Time Monitoring
24/7 automated checks for your websites, APIs and services.
Alerts
Get notified by email, SMS or webhook the moment something breaks.
SSL certificate monitoring
Get warned before your SSL certificates expire and break HTTPS.
How AlertsDown Works
Simple, powerful uptime monitoring in just three steps
Choose how you get alerts
Add email, SMS or webhook easily.
Add Your Websites & APIs
Paste your URL, choose a check interval, and start monitoring in seconds.
Receive Instant Alerts
Get notified the moment something breaks so you can fix it before users notice.
Trusted by Growing Businesses
Real-time HTTP Monitoring
Track your website's uptime, response times, and performance with detailed analytics and instant notifications.
- ✓ Automated health checks every minute
- ✓ Response time tracking
- ✓ Instant downtime alerts
- ✓ Historical performance data
Why AlertsDown?
Uptime monitoring built for small teams, indie devs and SaaS.
Clear, simple pricing
No confusing plans or hidden limits.
Flexible alerts
Email, SMS and webhooks for your own tools.
Privacy-friendly
Hosted in the EU with GDPR-friendly practices.
Here’s what people say about AlertsDown
Real stories from businesses using AlertsDown for their uptime monitoring needs
I created AlertsDown for my own projects and it has been a lifesaver. I couldn't find a cheap and easy services, so I decided to build my own.
Nicolas Kaczmarski
Founder, Alertsdown.com
The SSL certificate monitoring feature alerted us just in time before our certificate expired. Without AlertsDown, we would have faced significant downtime and lost customer trust.
Jérôme Kestener
Co-founder, Buy-European.org